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BE1-25/79TR Functional Description

3-16

RELAY ID:  XXXXXXXXXXXXXXXXXXXXXXXX

DATE mm/dd/yy

TIME hh:mm:ss

DIAGNOSTICS 

PARAMETER

STATUS

RAM

OK / ERROR

ROM

OK / ERROR

A/D CONVERTER

OK / ERROR

EEPROM 

OK / ERROR

PT CAL NUMBERS

OK / ERROR

POWER SUPPLY

OK / ERROR

SYS FREQ

60/50

LINE V (a b c)

xxx.x

xxx.x

xxx.x

BUS V (a b c)

xxx.x

xxx.x

xxx.x

DIFF V (b)

xxx.x

P ANGLE (b)

xxx.x

F SLIP (b)

xx.xx

 PRESS 'ESC' TO RETURN TO MAIN MENU

Figure 3-12.  Diagnostics Screen - Three Phase

Summary of Contents for BE1-25/79TR

Page 1: ...05647 6 10 07 14 19 241 5 0 4 15 0 4 64 Publication 9 2787 00 990 Revision B 07 95...

Page 2: ...ocedures presented in this manual INTRODUCTION This manual provides information concerning the operation of BE1 25 79TR Sync Check Reclosing Relays To accomplish this the following information is prov...

Page 3: ...Printed in USA July 1995 It is not the intention of this manual to cover all details and variations in equipment nor does this manual provide data for every possible contingency regarding installatio...

Page 4: ...er T1 Faults and Clears 1 9 Bus D or Transformer T1 Faults and Fails to Clears 1 9 Bus E or Transformer T2 Faults and Fails to Clears 1 9 Model Numbers 1 10 Specifications 1 11 Section 2 CONTROLS AND...

Page 5: ...Potential Timer 3 11 Selection Functions 3 11 HSR Sync 3 11 Start 52b 3 11 Communications 3 11 General 3 11 RS232 C Format 3 11 Serial Port Connections and Configurations 3 12 Serial Communication 3 1...

Page 6: ...L Inhibit 5 10 Phase Accept 5 10 Slip Frequency Difference 5 11 Programmable Outputs 5 11 Calibration 5 12 Self Test 5 13 Loading Factory Default Settings 5 15 Section 6 MAINTENANCE 6 1 General 6 1 In...

Page 7: ...es are required to fully automate your transmission line system CAPABILITIES BE1 25 79TR relays are similar in principle to mechanical repeat cycle timers where various operations are permitted as the...

Page 8: ...the front panel Visual Display Twelve character display to monitor function status and settings Targets Eight red LEDs Control Four yellow LEDs Timing Seven green LEDs Status One green and four yello...

Page 9: ...losed or the high speed reclose HSR input closes momentarily refer to Figure 1 2 for timing relationships Either of these conditions cause the master timer and all reclose timers to begin timing The s...

Page 10: ...the breaker 52b contact is checked If the breaker remains closed for the time established for RST1 timer then the relay is reset Figure 1 2 PAR LL LB Reclosing Timing Chart Figure 1 3 Failed Reclose...

Page 11: ...m A programmable output contacts PROG1 PROG2 and PROG3 are provided to indicate system voltage conditions loss of potential Lockout reclosing in progress parallel and high speed reclosing targets Form...

Page 12: ...ar manner for breaker 52 2 BE1 25 79TR relay number 3 is connected to motor operated switch 89 4 with bus D PT feeding the line input and bus E PT feeding the bus input BE1 25 79TR relay number 4 is c...

Page 13: ...BE1 25 79TR General Information 1 7 Figure 1 5 Application Example BE1 25 79TR Relay 1 Figure 1 6 Application Example BE1 25 79TR Relay 2...

Page 14: ...BE1 25 79TR General Information 1 8 Figure 1 7 Application Example BE1 25 79TR Relay 3 Figure 1 8 Application Example BE1 25 79TR Relay 4...

Page 15: ...mer expires the relay drives to lockout During this time RP2 timer in BE1 25 79TR 2 is enabled by the input through the RP memory 1 normally closed contacts of BE1 25 79TR 4 relay motor operated switc...

Page 16: ...ription 9 2787 00 100 Three phase 120 Vac 125 Vdc Horizontal Mount 9 2787 00 101 Three phase 48 Vdc Horizontal Mount 9 2787 00 102 Three phase 120 Vac 125 Vdc Vertical Mount 9 2787 00 103 Three phase...

Page 17: ...10 to 135 volts at 25 C Setpoint Accuracy 1 0 from a reference measurement at 25 C at nominal input frequency and levels over the specified operating range of temperature and input voltages Voltage Di...

Page 18: ...ential LOP TD 0 01 9 99 seconds If the breaker is intended to operate open parallel disabled then the relay will go to reset after the master timer times out and RST2 timer expires The bus and line wi...

Page 19: ...inductance resistance L R ratio 0 04 125 250 Vdc Indicators Targets Eight LED s red on the front panel status display The targets are High Speed Reclose HSR Power Failure PF Line Test 1 LT1 Line Test...

Page 20: ...Standard Surge Withstand Capability SWC Tests for Protective Relays and Relay Systems Fast Transient All inputs and outputs except for communication ports are qualified to ANSI IEEE C37 90 1 1989 Radi...

Page 21: ...ATORS Figures 2 1 and 2 2 illustrate the horizontal BE1 25 79TR Sync Check Reclosing Relay front and rear views Figure 2 1 BE1 25 79TR Sync Check Reclosing Relay Front View Figure 2 2 BE1 25 79TR Sync...

Page 22: ...Settings Select Up Selects front panel display SETTINGS mode to show all settable parameters and scrolls up through the available settings F Settings Select Down Selects front panel display SETTINGS...

Page 23: ...BE1 25 79TR Controls and Indicators 2 3 Figure 2 3 Location of Controls and Indicators Control Panel...

Page 24: ...pull handle and withdraw the electronics from the case Flip over the electronics to view the bottom of the mounting chassis The four memory outputs RP1 LT1 RP2 and LT2 may be configured to be N O nor...

Page 25: ...BE1 25 79TR Controls and Indicators 2 5 Figure 2 5 Vertical BE1 25 79TR Sync Check Reclosing Relay Front View...

Page 26: ...BE1 25 79TR Controls and Indicators 2 6 Figure 2 6 Vertical BE1 25 79TR Sync Check Reclosing Relay Rear View...

Page 27: ...BE1 25 79TR Controls and Indicators 2 7 Figure 2 7 Front Panel Vertical Mount Relay...

Page 28: ...rted to digital signals by an analog to digital convertor ADC internal to the on board microprocessor The microprocessor uses a four sample per cycle algorithm to calculate voltage magnitudes Phase an...

Page 29: ...BE1 25 79TR Functional Description 3 2 Figure 3 1 Functional Block Diagram...

Page 30: ...r future use 1 254 K BAUD Communication Baud Rate 0 3 0 6 1 2 2 4 4 8 9 6 MASTER TD Master Time Delay 1 999 seconds RST1 TD Reset 1 Time Delay 1 999 seconds RST2 TD Reset 2 Time Delay 1 999 seconds HS...

Page 31: ...t switch is operated or when the switches are left unchanged for over 1 minute After entering status mode the state of the controlled breaker is monitored RST1 timer times if the breaker is closed If...

Page 32: ...contact sensing input PAR If the breaker is intended to operate open this function would be disabled The parallel function has a time delay of 1 to 999 seconds This function is initiated with the PAR...

Page 33: ...to 999 cycles The sync check function is independent of the master timer and can provide independent synchronism reclosing refer to Figure 3 2 Available parameters refer to Figure 3 3 are Phase Window...

Page 34: ...dead voltage limits Available parameters are Delta V Condition Adjustable from 1 to 135 Vac Blocks closing when difference between the magnitude of the bus and line potentials is greater than this set...

Page 35: ...by front panel LED when LED is ON Live Bus LB Condition adjustable from 10 to 135 Vac Enabled when bus voltage is greater than setting Indicated by front panel LED when LED is ON Dead Bus DB Conditio...

Page 36: ...et mode the reset LED RST lights and all target LED s and memory outputs are turned off TIMING FUNCTIONS Master Timer The master timer allows the maximum window of time for a reclosing sequence and ha...

Page 37: ...econds If the master timer is enabled due to conditions described in the master timer paragraph all five reclose timers will start timing down and the associated timing LED s will light When a reclose...

Page 38: ...reclose to occur unless the sync check conditions are met with SYNC output closed Start 52b This selection allows the master timer to start timing along with all the reclose timers LT1 LT2 RP1 RP2 an...

Page 39: ...ll down the Settings menu and select Terminal Emulation refer to Figure 3 5 After you have chosen Terminal Emulation a dialog box similar to Figure 3 6 should appear Select DEC VT 100 and OK the selec...

Page 40: ...ta or capture data to a file No special commands are needed to retrieve data other than a few keystrokes to select the desired screen Each screen is displayed by transmitting a series of information s...

Page 41: ...d includes one or more events 3 RESET MAINTENANCE VALUES This screen provides a means for the user maintenance personnel to reset the number of breaker operations associated with breaker maintenance a...

Page 42: ...creen to identify this relay from other devices DATE and TIME are the current date and time as reported from the relay The internal parameters are checked at power up and during normal operation If no...

Page 43: ...TER STATUS RAM OK ERROR ROM OK ERROR A D CONVERTER OK ERROR EEPROM OK ERROR PT CAL NUMBERS OK ERROR POWER SUPPLY OK ERROR SYS FREQ 60 50 LINE V a b c xxx x xxx x xxx x BUS V a b c xxx x xxx x xxx x DI...

Page 44: ...ETTINGS Y N with Y before the selection is actually saved and set in the settings table RELAY ID XXXXXXXXXXXXXXXXXXXXXXXX DATE mm dd yy TIME hh mm ss REVIEW EDIT SETTINGS FUNCTION EXIST NEW FUNCTION E...

Page 45: ...uling breaker maintenance EDIT SETTINGS PASSWORD and DIAGNOSTICS PASSWORD are8characterorlesspasswords required to enter the REVIEW EDIT SETTINGS screen PROGRAMMABLE OUTPUTS screen and DIAGNOSTICS scr...

Page 46: ...erscore _ A blank or return may be used to get around using the password by typing return enter when a new password is entered This results in displaying null under the NEW column STATION NAME and LIN...

Page 47: ...ted from the relay The SUMMARY REPORT displays a screen that shows the input type name input direction and time associated for each event for a selected record The DETAILED REPORT displays a screen th...

Page 48: ...REPORT screen LOSS OF POTENTIAL occurs when either the bus or line goes dead while the breaker is closed for the duration of the LOP TD RESET BY USER occurs when the RESET EVENT parameter is set in t...

Page 49: ...N EVENT AND G FOLLOWED WITH xx TO GO TO A RECORD PRESS ESC TO RETURN TO REPORTS MENU Figure 3 16 Summary Report Screen Detailed Report Figure 3 17 This activity screen provides a detailed report of ea...

Page 50: ...indicates that the contact sensing input is closed Under OUTPUTS in Figure 3 17 an output with a 0 indicates that the output relay is not energized If the output is a 1 it indicates that the output r...

Page 51: ...0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 HH MM SS SH 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 HH MM SS SH 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 HH MM SS SH 1 1...

Page 52: ...ECLOSING IN PROGRESS function is indicated whenever the relay is not in RESET and is not in LOCKOUT When ESC is pressed after a settings change a statement requesting verification of the setting chang...

Page 53: ...id state devices and have been type tested in accordance with the requirements defined in the following paragraph Dielectric Test If a wiring insulation test is required on the switchgear or panel ass...

Page 54: ...g the cutout dimensions of Figure 4 2 as a guide When panel mounting the relay an optional escutcheon plate can be installed to cover variations in panel cutouts Figure 4 3 shows the mounting flanges...

Page 55: ...imensions for Non Rack Mounting Legend For Figure 4 3 1 Screw Flat Head 8 32 x 7 16 Phillips Head 2 Escutcheon Plate 3 Screw Flat Head 4 40 x 5 16 Torx Head T10 4 Screw Pan Head 4 40 x 3 8 Torx Head T...

Page 56: ...four screws 3 two each from the relay top and bottom Position the escutcheon plate at the standard location and reinstall the attaching hardware When installing the escutcheon plate at the alternate...

Page 57: ...s are suitable for use with wire sizes of 14 AWG or smaller Typical connection diagrams are shown in Figures 4 6 and 4 7 Figure 4 8 shows a typical connection diagram for BE1 25 79TR Sync Check Reclos...

Page 58: ...BE1 25 79TR Installation 4 6 Figure 4 6 Typical Connection Diagram Single Phase Figure 4 7 Typical Connection Diagram Three Phase...

Page 59: ...High Speed Feature Cut Out HRC High Speed Reclose Cancel HRI High Speed Reclose Initiate HSR High Speed Reclose Enable LT1 First Line Test Enable P FCO Parallel Feature Cut Out PAR Parallel Enable PF...

Page 60: ...BE1 25 79TR Installation 4 8 Figure 4 9 RS 232 Interconnection Diagram For IBM Type Computers...

Page 61: ...BE1 25 79TR Installation 4 9 Figure 4 10 RS 232 Interconnection Diagram For Protective Relay Terminals...

Page 62: ...est is divided into eight different functional areas The functional areas are Time Date Settings and Save Timers Control Inputs Voltage Monitor Voltage Difference Inhibit Sync LB and LL Inhibit Phase...

Page 63: ...BE1 25 79TR Testing 5 2 REAR VIEW FRONT VIEW Figure 5 1 BE1 25 79TR Test Simulator...

Page 64: ...BE1 25 79TR Testing 5 3 Figure 5 2 BE1 25 79TR Test Simulator Schematic Diagram Sheet 1 of 2...

Page 65: ...BE1 25 79TR Testing 5 4 Figure 5 3 BE1 25 79TR Test Simulator Schematic Diagram Sheet 2 of 2...

Page 66: ...BE1 25 79TR Testing 5 5 Figure 5 4 Test Setup Diagram...

Page 67: ...ep 3 Set the line voltage at a dead level and the bus voltage at a live level Step 4 Close the LT1 switch and operate the MANUAL TRIP switch on the test set Observe LT1 timer counts down the test set...

Page 68: ...ep 20 Close the PAR switch on the test set and trip the breaker Verify that the time from when the sync contacts close until the test set breaker closes equals the desired parallel time delay Step 21...

Page 69: ...ch open the test set PAR switch and reset the relay targets LOP Timer Step 31 Use SET SELECT and Status EDIT switches to set LOP timer to 100 Save setup using Status EDIT and RESET switches Step 32 Se...

Page 70: ...p 13 Open the test set PAR switch DTL Step 14 With the test set breaker closed and the relay RST LED ON close the DTL switch on the test set Observe that the RST LED extinguishes and the LO LED lights...

Page 71: ...e preliminary setup procedures Step 2 Apply voltages that are lower than the relay LL and LB settings The relay LL and LB LEDs should NOT be ON Step 3 Trip the test set breaker and verify that no sync...

Page 72: ...al to the relay slip frequency difference setting 0 05 Hz Step 5 Return the line frequency to system frequency Step 6 Raise the line frequency until the LB and LL LEDs start flashing The frequency of...

Page 73: ...operation operate Settings Select UP or DOWN switch UP for 60 Hz DOWN for 50 Hz Step 7 Verify the selection of system frequency by operating Status EDIT Up switch and observe that the following is di...

Page 74: ...following steps Step 1 Perform the preliminary setup procedures Step 2 Operate Set Select UP or DOWN switch and observe SETTINGS MDE indicated on display Step 3 Operate Set Select UP or DOWN switch u...

Page 75: ...ED ON RP1 Timing LED ON RP2 Timing LED ON PF Timing LED ON PAR Timing LED ON LO Timing LED ON RST Timing LED ON DB Control LED ON LB Control LED ON DL Control LED ON LL Control LED ON TRIP Control LED...

Page 76: ...TART 52B 0 0 N 1 Y BKR RECG 2 x4 MSEC LOP TD 0 x10 MSEC ADDRESS 125 BAUD RATE 19200 FRONT BAUD RATE 19200 REAR Load Default Settings Step 1 Operate the Set Select UP or DOWN switch and observe that SE...

Page 77: ...is to be attempted replacement parts may be purchased locally The quality of replacement parts must be at least equal to that of the original components Where special components are involved Basler El...

Page 78: ...rom plus or minus 12 Vdc to plus or minus 15 Vdc Added cutout dimensions and drawings and information for the escutcheon plate Added Section 7 Manual Change Information 15096 05 12 95 B Clarified the...

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